How to Apply for a K-1 Visa (2026 Step-by-Step Guide)
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How do you apply for a K-1 visa?
The K-1 visa process happens in three main steps:
- The U.S. citizen files Form I-129F with U.S. Citizenship and Immigration Services (USCIS)
- The foreign fiancé completes Form DS-160 and attends a visa interview at a U.S. embassy
- The couple marries within 90 days of the foreign fiancé entering the United States
After the marriage, the foreign spouse applies for a green card through adjustment of status.
Boundless guides you through every step of the K-1 application, and helps you avoid the mistakes that cause delays. Learn more today.
Step 1: File Form I-129F (Petition for Alien Fiancé)
The process begins when the U.S. citizen sponsor files Form I-129F with USCIS. This can be filed from inside the United States — the foreign fiancé remains abroad during this step.
What to include with Form I-129F
You must submit evidence showing that you meet K-1 visa requirements. Required documents typically include:
- Proof of U.S. citizenship (passport, birth certificate, or naturalization certificate)
- Signed statements from both partners confirming intent to marry within 90 days
- Evidence of a genuine relationship (photos, messages, travel records)
- Proof you met in person within the last 2 years (boarding passes, passport stamps, photos with dates)
- Passport-style photos of both partners
- Copy of the foreign fiancé's passport biographic page
- Proof that any previous marriages were legally ended (divorce decrees, death certificates)
What happens after you file?
USCIS will send a receipt notice within 30 days. Processing typically takes about 7 to 8 months. USCIS may issue a Request for Evidence (RFE) if additional information is needed. Once approved, USCIS sends an approval notice and forwards the case to the National Visa Center.
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Step 2: Complete Form DS-160 and Attend the Visa Interview
Once Form I-129F is approved, the case moves to the U.S. Department of State. The foreign fiancé must complete Form DS-160 — the official online nonimmigrant visa application. Print the confirmation page after submitting.
What happens during this stage?
1. The case is sent to the National Visa Center (NVC) and assigned a case number
2. The case is forwarded to the U.S. embassy or consulate in the fiancé's home country
3. The fiancé receives instructions for scheduling the medical exam and interview
4. The medical exam is completed with an approved physician
5. The visa interview takes place at the U.S. embassy
Documents the foreign fiancé needs for the interview
- Valid, unexpired passport
- Birth certificate
- Two passport-style photos
- DS-160 confirmation page
- Police certificates from all countries where you lived for more than 6 months since age 16
- Sealed medical exam results from an approved physician
Documents the U.S. citizen must provide
- Form I-134 (Affidavit of Support)
- Most recent tax returns
- Proof of income (pay stubs or employment letter)
- Copy of the approved I-129F petition
What happens at the interview?
A consular officer will review the relationship and eligibility. A decision is often made the same day or shortly after. If additional evidence is needed, the officer will request it be submitted directly to the consulate.
Step 3: Enter the United States and Get Married
If the visa is approved, the foreign fiancé has up to 6 months to enter the United States. After arrival, the couple must marry within 90 days.
If the couple does not marry within 90 days, the K-1 visa becomes invalid and the foreign partner must leave the United States immediately.
What happens after marriage?
The next step after marriage is applying for a green card through adjustment of status. This includes:
- Filing Form I-485 (Application to Register Permanent Residence)
- Submitting financial and relationship evidence
- Attending a green card interview(in most cases)
- Applying for a work permit and travel authorization (if needed while waiting)
Do you need to be in the U.S. to apply?
No. The U.S. citizen can file Form I-129F from inside the United States while the foreign fiancé remains abroad. The foreign fiancé does not need to travel to the U.S. until after the visa is approved.
How long does the full process take?
The full K-1 visa process typically takes 8 to 11 months. Because of this timeline, it is best to start as early as possible to avoid disruptions to your plans.
- Form I-129F processing: about 7 to 8 months
- National Visa Center stage: about 4 to 6 weeks
- Embassy interview and approval: about 4 to 6 weeks
Full breakdown: K-1 Visa Processing Time
How much does it cost?
The total government cost is about $940. This includes the I-129F filing fee ($675), DS-160 visa fee ($265), and medical exam (approximately $200, varies by location).
Full breakdown: K-1 Visa Cost
Common mistakes when applying
Most K-1 visa delays and denials are caused by avoidable issues:
- Submitting incomplete or incorrect forms
- Providing weak or inconsistent relationship evidence
- Not meeting income requirements or failing to arrange a joint sponsor
- Missing documents at the visa interview
- Inconsistent answers between partners at the interview
Full guide: K-1 Visa Denial Reasons and Common Mistakes
When should you start?
Start as early as possible. Because the process takes 8 to 11 months, delays can directly impact your plans to live together or get married in the United States. Starting early secures your place in line and gives you time to prepare a thorough application.
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Related Information
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USCIS offers a $50 discount if you file Form I-129F online instead of by mail.
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USCIS offers a $50 discount if you file Form I-129F online instead of by mail.
USCIS offers a $50 discount if you file Form I-129F online instead of by mail.
Ready to start?
We'll guide you through every step.
Ready to start?
We'll guide you through every step.
K-1 FAQs
To be eligible for a K-1 visa, you must be engaged to a U.S. citizen and plan to marry within 90 days of arriving in the U.S. You must also prove that you have met in person at least once within the two years prior to applying for the visa.
Yes, but only if, after you arrive in the U.S., you apply and are approved for a work permit by completing Form I-765 (Application for Employment Authorization).
Like the K-1 visa, this employment authorization is only valid for 90 days, starting when you arrive in the U.S.
If you choose to apply for permanent residency after you arrive and file Form I-485 (Application to Register Permanent Residence or Adjust Status), you can include Form I-765 with your application. This would grant you work authorization for one year.
A K-1 visa allows you to stay in the U.S. for 90 days to get married and apply for a marriage green card via the adjustment of status process.
Not all K-1 visa applications allow for joint sponsors. For example, applicants specifically from the Philippines and Thailand are unable to enlist joint sponsors for their K1 applications. If you’re unsure whether you can include a joint sponsor on your application, it is best to contact the U.S. Embassy or consulate where your application will be processed to ensure joint sponsors may be included before applying.
The K-1 fiancé visa is currently taking slightly longer to process than the CR-1 spousal visa. The K-1 will also cost significantly more when the government raises fees in late 2023. But choosing between these two visa paths depends on your unique situation. Boundless has put together an in-depth guide on the pros and cons of the K-1 vs. CR-1 visas.
The 2-year rule is a crucial part of the USCIS K-1 visa process. It is designed to ensure that the relationship between the US citizen and the foreign-citizen fiancé is genuine by requiring couples to provide proof they’ve met in person at least once within the two years before they submit Form I-129F. This doesn’t mean couples need to have been in a relationship or know each other for two or more years; it simply means that before you send in your K-1 visa forms, you must have evidence that you’ve physically met.
Online meetings, video chats, and phone calls do not satisfy this requirement. However, there are some exceptions to this rule. If meeting in person would conflict with religious or cultural traditions, or if it would result in severe hardship to the foreign-citizen fiancé(e), the rule may not apply.
If you are the fiancé of a U.S. citizen, you can apply for a K-1 visa. If you are the spouse of a U.S. citizen, historically you could apply for a K-3 visa. In recent years, the K-3 visa has been issued on a case-by-case basis. The common path for married couples when one partner lives abroad is the CR-1 spousal visa, which is available to partners of U.S. citizens and green card holders.
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